Wiper arm and mounting therefor



July 25, 1933. HUEBER 1,920,145

WIPEB ARM AND MOUNTING THEREFOR Filed Nov. 29, 1929 2 Sheets-Shgaet lPatented July 25, 1933 UNITED STATES PATENT OFFICE HENRY HUEZBER,OFIBUFFALO, NEW YORK, ASSIGNOR r rnroornonuors'coaroaa TION, or BUFFALO,NEW YORK WIIEB ARM AND MOUNTING THEREFOR Application filed November 29,1929. Serial 170. 410,801.

This invention relates to windshield cleaners and primarily to a wiperarm assembly or construction and its mounting. In my prior Patent No.1,674 657. there is shown a Wiper arm mounting in which the arm isdetachably secured in place by a spring device actingin the addedcapacit of urging [the 1 ance to the wiper'arm mounting and at the.

for the springwiper blade against the win shield glass under apredetermined and desired Wiping pressure. Prior to the presentinvention at-' tentionhas been chiefly applied to the features involvingthe utility of the windshield cleaner and particularly to'the wiper arm.

.The present invention particularly improves the appearance for thispart and in addition adds to its utility." The abandonment ofv the visoron many of the more expensive cars with the accompanying full exposureof the wiper arm has brought attention to the necessity of improvementof the wiper arm, solution of which is offered in thisinvention.

.on thisprior patent and-embodies the stir rup construction in-the wiperarm make-up and utilizes a separate mounting for the spring, to providea more finished appear- -same time providea housing device embodied insald mounting. The 1n.- vention also resides 1n a construction in whichthe spring dev ice is readily placed made to the'accompanying drawings werein greatly facilitated.

- The invention further resides in the'pro- N under tension and by whichthe wiper arm connection with the actuating member or shaft of thewindshield cleaner vision of locking means for the mounted wiper-arm toprevent displacement thereof when the wiper is subjected to unusualstrain due to ice or snow on the windshield.

- The invention also resides in the provision of means by which the armmay be adjusted and varied in length for properly locating the wiper onthe windshield glass.

Further the invention will be found to reside in the features ofconstruction ghereinafter set forth in detail, and the arrangements andcombinations of parts defined in e appended claims, reference bein newmotor is Fig. 1 is a fragmentary sectional view through a windshieldshowing a windshield cleaner applied thereto which embodies the presentinvention.

Fig. 2 is'a rear elevation of the wiper "arm assembly.

Fig. a detail perspective view of the stirrup section of thewiper arm.

4 is a fragmentary sectional view.

stirrup section of the wiper arm depicted in The present invention is animprovement i proceeding-in accordance with the presentinvention, thewindshield cleaner'motor 1 in Fig. 1 is shown mounted at the interiorside of the windshield 2 and has its forwardly projecting shaft 3provided with a seat 4 and a bearin 5.

' A spring device 1s engaged in the bearing '80 xportion -10'adapted tobe embraced under tension by the up er end of the springll whereby to'provid friction to prevent displacement of the anchoring' member fromthe rod 6 as well as e asuflicient amount of;

displacement of the spring from the anchor-. A

wiper carrying arm.

he wiper arm 'comprisesa stlrrup section and a wiper engaged "sectionWhlCh may .be'

'ing member prior to the placement of the integrally connected. oradjustably, as desired. The stirrup member embodies a part 12 forconnection to the actuating member 3 and a part 13 for'constituting aseat for the free end of the spring 11, said'seat being provided with anaperture or opening to guidingly receive the free end of the rod -6,

whereby said rod functions substantially as a key to connect the stirrupmember to the shaft 3 for movement therewith. It will be understood thatthe spring or resilient means, including spring ll and collar 9,together with the rod 6, constitute a spring device acting between theshaft 3 and the v lower end of the stirrup.

sions 13' are provided with supplemental recesses to form the opening 16which guidingly receives the lower end of the key or spring carryingmember 6. Side walls 15 merge to a top wall 17 from which depends=the-lip or part 12 which is designed for engaging in the seat. Theinturned extensions 13' are cut away on their inner marginal portions toprovide a slot 18 through which the wiper engaged or carrying section 19extends. When this section is formed separately from the stirrupsection, the inner end of said section 19 may be per manently secured tothe stirrup section by means of a rivet 20, or it mayterminate in a hookor detent 21 for selective engagement in a series of slots or recessss22 in thehous-, ing 14. In either-construction the walls of the slot 18confine the upper end of the section 19, and additional support is givento said section by a depending lip 23. The 0p,- 1

posite end of the section 19 is adapted to engage a wipe; memberin anysuitable manner.

The stirrup housing completely conceals and encloses the spring device,the spring itself nesting between the side walls15, so thattheattachment or mounting of the arm on the actuating member or shaft 3is not only given a neat appearance and finish butv the spring itself isprotected from the weather elements to a large degree. It has been foundthat upon rare occasions the formerly used spring means fail to holdsuch pintle and actuator assemblies due to unusual stress applied to thewiper member. The stirrup housing in covering the pintle'and actuatingassembly in close relation thereto actsas a positive lock therefor;

In the exterior mounting depicted in Fig. 5 the stirrup housing 14: isprovided with shaft 3' and engaged in the seat 4'.

an opening 24 for being passed over the In attaching an arm to eitherstyle of windshield cleaner, the pintle 7 is inserted in its bearing 5,andthen, as shown in the dotted lines in Fig. 1, the lower end of thespring carrying rod 6 is introduced into the opening 16 of the springseat 13.' Following this the wiper armis shifted upwardly against thetension of the spring 11, thereby comprising the sa ne prior to theengagement of-the stirrup section in its seat 4 (4).

The spring thus being compressed and held under tension, the stirrupsection is secured against displacement from the shaft 3 (3' the pintle7 secured against displacement from its bearing 5, and the wipercarrying section 19 yieldably urged against or toward the windshieldglass so as to provide the desired contact between the wiper blade 25and the windshield glass. Furthermore, the spring being nested betweenthe side walls 15. (15') further insures against lateral displacement ofthe pintle 7 from the bearing.5. This assembly thus substantially formsa lock for the'pintle 7 which cannot be displaced, by thedlsual lateralstresses i received in operation.

What is claimed is:

1. A wiper arm assembly comprising a wiper carrying arm having a stirrupsection provided with a part for engagement with a Wiper shaft, formounting and supporting the arm thereon, a spring retaining part fixedon the arm, and a spring device having one end engaged with the shaftand its opposite end engaged with and held compressed by said retainingpart in opposition to the first end of' said device, said first partbeing disposed on tlie side of said shaft that is opposite to the springretaining part whereby the spring device will act through the springretaining part=to hold said first part engaged with the shaft.

- 2. 'A windshield wiper arm assembly comprising a shaft having abearing and an ad- ]acent seat, a spring device including a memberrelcasablyengaging in said bearing and; having a part extendingtherefrom and supporting a coil spring a stirrup 3. A windshield wiperarm assembly comprising a shaft having a hearing and a x seat, a springdevice having an element en-:

gaging, in said bearing and a coil sp ring under compression suppportedat one end by. said element, a stirrup engaging said seat and having apart supporting the other end of said coil 5 ring, said stirrup having,side walls exten ing on opposite sides of said'shaft and having=porting the spring, plurality of seats therein, and a wiper carsaid rodelement ment whereby the shoulder, the latter engaging in said bearing,spring means on said rod element hav-' ing one end bearing against saidshoulder,-

a stirrup element engaged with said shaft and having a part supportingthe opposite end of the spring means under compression,

engaging the stirrup elelatter will move with the shaft, and meanscarried by ments for carryin a wiper blade.

5. In a winds'hie d cleaner, a shaft Having a transverse bearing, a rodele ent having a shoulder-and a pintle, the lat r engaging in saidbearing, element having one end bearing against said shoulder, a stirrupelement engaged with said shaft and having a part supporting theopposite end of said resilient means, said stirrup element having frontand side walls enclosing said resilient means, and a wiper carrying armsection carried by one of said elements and 'removably connectedthereto.

- 6. In a windshield cleaner, awiper shaft having a transverse bearing,a rod having a pintle engaging in said bearing, spring means on saidrod, means for holding the end of the spring means adjacent the-pintleagainst movement toward said pintle, a stirrup member engaged with saidshaft and 'having a part supporting the opposite end of the springmeans-under com ression, said stirrup having side, front and ttom walls,said bottom wall" being provided with-a slot, anda wiper carrying armsection extending through the slotand having its inner :end.

a front wall of the stirrup, saidwiper carrying armsection being heldagainst lateral movement by portions-of-the 7. Ina windshield cleaner,,ashaft having a bearing, a rod engaging in said bearing, a springmounted on said rod against displacement therefrom, a stirrupfi hung onsecured tosaid said stirrup having a rying arm section carried by thestirrup and having its inner end selectively engageable with any one ofsaid plurality of seats. 8. A wiper arm mounting for windshield cleanershaving a shaft. provided with a bearing and a seat, (a spring deviceengaged in said bearing and having a part under Iflexure, and "a wipercarrying arm engaged in said seat and having a part engaging the flexedpart of the spring device, sa d wiper carrying arm having displacementof the one of said ele-' resilient means on said rod wiper carrying.armprovided with engaging part for hooking over the seat, a

a spring seat sup-f part andsaid means,

means associated therewith for preventing spring device from-the armg.

.9. In a wiper arm mounting for windshield cleaners having a shaftprovided with a bearing and a seat, an o n elongated housing elementprovide with a front wall and side wall ortions extending therefrom, theupper en of said housing element enclosing the end of said shaft androvided with en a 'n means for en a;,- P g 3' g g ing said seat, a r0element mounted in said bearing and loosely extending downwardly throughthe lower end of said housing ele-' ment whereby the said rod elementconnects the shaft to the said housing element for unitary action, andspring means within the housing element for maintaining saidengagingmeans on said seat.

10. In a wiper arm mounting for windshield cleaners having a shaftprovided with a bearing and a seat, a wiper? carrying arm provided withengaging means for engag-. ing the seat, a rod provided with a springseat and detachably mounted at one end in said bearing and having itsopposite end extending substa'ntiall parallel to the wiper carrying armand s idably engaged therewith, whereby the rod connects the shaft andwiper carrying arm for movement as a unit, and spring means mountedabout said 'rod and engaging the spring seat and a portion of the wipercarrying arm adjacent the said opposite end of the rod for maintainingthe engaging means on said seat.

-11. In a wiper arm mounting for windshield cleaners haviii a shaftprovided with a bearing and a'seat, the latter being between the bearingand the windshield, a a seat spring supporting part carried by the armand, disposed on the side of the shaft opposite' the seat engaging part,a rod pivoted at one end in said bearing and extending sprlng meansmounted about the rod and exerting pressure against said spring portingpart to thereby urge said sea-t engaging part to its seat and to 'urgethe wiper carrying arm toward/the windshield.

12. In a windshield cleaner the combination of a-shaft provided with apart for engaging a spring device and a seat, a wiper carryingarm havinga portion engaging'the seat and means for engaging a spring device, aspring device under flexure engaging said 7 such side. of the shaft tionbeing offset relative to the force axis of thespring device whereby thespring device'will urge the wiper, carrying arm toward the windshield.

1 3. In a wiper arm mounting for windthrough a. the springsupportingpart, and

sup-.

said portion-being on thatthe spring device "-will urge itagainst theseat, and said porshield cleaners having a shaft provided with a seat, awiper carrying arm detachably suspended from the ,seat and provided witha fixed spring support, and a spring device under compression betweenand engaging the spring support and the shaft for holding the armagainst displacement from the shaft.

14. In a wiper arm mounting for windshield cleaners having a shaft, awipercarrying arm suspended from said shaft and provided with a fixedseat, and a compressed spring device supported on the seat atone endthereof and acting at its opposite end against said shaft.

15. In a windshield cleaner, a shaft having a seat and means forengaging a spring device, a stirrup having awiper arm secured theretoand supported thereby and having a portion bearing againstsaid seat, aspring device having an end engaged with the engaging means of the shaftand the op posite end engagingthe stirrup for holding said portion ofthe stirrup against said seat, the seat and the force axis of the springdevice being so related that said spring device will urge angularmovement of the stirrup and the wiper arm secured thereto about the seattoward the windshield.

16. In a wiper arm mounting for windshield cleaners having a shaftprovided at its end with a bearing and a seat, an open elongated housingelement with a front wall and side wall portions extending therefrom,the upper end of said housing element enclosing the end of said shaftand provided with engaging means for engaging said seat.

a rod element mounted in said bearing and loosely extending downwardlythrough the longer end of said housing element whereby the rod elementconnects the shaft to "the said hon-sing element for unitary action,

spring means within the housing element for maintaining said engagingmeans on said seat, and means for carrying a wiper blade connected toone of said elements.

17. In a wiper arm mounting for windshield cleaners having a-shaftprovided with a bearing and a seat, an elongated housing provided withwall portions, the upper end of the housing being provided with a seatengaging part engaging an upper surface of the shaft, a rod providedwith a pintle portion for engaging said bearing, said rod having aspring engaging portion and an extension extending downwardly from thespring engaging portion between said wall portions and through the lowerend of said housing,

and spring means mounted about said rod extension and compressed between.said

spring engaging portionand the ldwer end of the housing, said wallportion' of said nouslng'enclosing the end of the shaft to preventaccidental displacement of the pintle therefrom.

18. In a wiper arm mounting for windshield cleaners having a shaftmember progated housing provided with a front wall and side wallportions extending therefrom,

-vided with a bearing and'a seat an elona bearing and a seat, a rodmember having a pintle' portion, engaging said bearing, a stirrup memberhaving a part seated on. said seat and another part engaged with aportion of the rod member remote from said pintle portion, said stirrupmember having a side wall portion disposed adjacent said rod member forretaining the pintl'e portion against displacement from said bearing,and awiper carried by one of said members.

20. In a windshield cleaner, a wiper shaft, :1 wiper blade, a Wiper armsection connected to the blade, and a stirrup member attached to saidarm section and connectible to the wiper shaft, said stirrup memberhavmg a restricted opening passing said arm section one of said membershaving a plurality o recesses therealong, ,and the other of said membershaving a detent engageable with any one of said recesses, whereby saidarm section may be adjusted longitudinally within said restrictedopening.

21. In awindshield cleaner wiper arm assembly for attachment to a wipershaft, a

member extending radially from the shaft 7 and engaging one end of saidshaft for movement with 'theshaft about the axis of the latter, and acasing engaging said memher, said casing having front, side, and upperwalls housing the shaft engaging of said member and said end of theshaft.

22. In a windshield cleaner wiper arm assembly for attachment to a wipershaft having a transverse opening therein, a member extending radiallyfrom the shaft and having a part engaging said opening for fixing themember to the shaft for movement about the axis of the latter, and acasing having front, side, and upper walls housing the upper portion ofsaid member and the portion of the shaft engaged with the member,

whereby said casing may prevent accidene tal displacement of said partfrom said opening in the shaft.

23. In a windshield cleaner, awiper shaft having a transverse bearingopening, a cashousing the end portion of the sha-ft and a wiper blade, arod disposed substantially said bearing opening, a wiper arm having itsupper portlon connected to the lower portion of the elongated casingmember and having its lower end adapted for car ing ing openin andextending into an opening ina wall 0 the casing member, whereby thehousing and wiper arm and wiper blade are held against angular movementrelative to the wiper shaft about the axis of the latter.

within the confines of the casing member HENRY HUEBER.

and extending through the transverse bearveizariricara or eoRREcTioN.

eaten No. 1,920,145. July 25, 1933.

HENRY HUEBER;

It is hereby certified that error appears in the printed specificationof the above numbered patent requiring correction as follows: Page 4,line 110, claim 21, after "engaging" insert the word "portion"; and thatthe said Letters Patent should be read with this correction therein thatthe same may conform to the re-' cord of the case in the Patent OfficeSigned and sealed this 22nd day of August, A. D. 1933.

(Seal) Acting Comniiisdimiiiihi' Patents.

